A rendre aujourdui svp. Ajuste les équations chimiques suivantes :
1. Al + S → Al2S3
2. Fe + O2 → FeO3
3. CH4 + O2 → CO2 + H2O
4. C2H6 + O2 → CO2 + H2O
5. C3H8 + O2 → CO2 + H2O
6. CO + O2 → CO2
7. Fe2O3 + Al → Fe + Al2O3
8. C2H6O + O2 → CO + H2O
9. H2S + O2 → S + H2O
10. C3H8 + Cl2 → C + HCl
11. FeS + O2 → Fe2O3 + SO2
12. H2S + SO2 → S + H2O
13. H2SO4 + NaOH → Na2SO4 + H2O
14. FeCl3 + H2S → FeCl2 + S + HCl
15. N2H4 + H2O2 → N2 + H2O
16. Mg + CO2 → CO + MgO
17. Al(OH)3 + H2SO4 → Al2(SO4)3 + H2O
18. C6H5Cl + O2 → CO2 + H2O + HCl
19. NH4Cl + Ca(OH)2 → CaCl2 + H2O + NH3
20. Cl2 + NH4OH → NH4Cl + H2O + N2
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